Sam is 12 years older than Matt. Five years ago the sum of their ages was 28. How old are they now?
Write a system of equations to represent this situation.
Define your variables

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.